Mechanism for and method of making highly elastic, plain knitted fabric containing rubber-like strands



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Patented Aug. 25, 1936 PATENT OFFICE '1 MECHANISM FOR AND METHOD OF-MAKING HIGHLY ELASTIC, PLAIN KNITTED FAB- RIC CONTAINING RUBBER-LIKE STRANDS Charles E.

Drumheller, Springfield, Mass, as-

signor to The William Carter Company, Needham Heights, Mass., a corporation of Massa- .chusetts Application January 19, 1934, Serial No. 707,259.

9 Claims. (Cl; 66-12) V1 This invention relates to mechanism for and .to the related method of making highly expansible, plain knitted fabric containing rubberlike strands.

In order that the principle of the invention may be readily understood, I have disclosed in the accompanying. drawings one form of mechanism of my invention and upon or by which my method may be practised and by which a novel fabric may be made, said fabric being claimed in my copending application Ser. No. 107,260, filed Jan. 19, 1934.

In said drawings,--

Fig. 1 is a top plan view of a circular knitting machine whereon the fabric of my invention may be produced; 7

Fig. 2 is a front elevation of the said machine and representing the fabric as depending therefrom, the said fabric in full lines being represented as of constantly'increasing diameter and in dotted lines as fashioned or shaped, that is, as having contracted or enlarged portions;

Figs. 3, 4,and 5 are vertical sections taken through the machine on lines 3-'3, 44 and 5-5 of Fig. 1;

Fig. 6 is a side elevation of sufflcient of th machine shown in Fig. 1 to represent thestitch drawing cams at the first feed thereof looking outwardly;

Fig; '7 is a vertical section upon the line i-'i of Fig. 6 looking in the direction of the arrows thereon;

Fig. 8 is aview similar to Fig. 6 but looking inwardly at the point upon which the section Fig. 7 is taken;

Fig. 9 is a view similar to Fig. 6.but at the second or third feed of the machine;

Fig. 10 is a vertical section upon the line l0i0 of Fig. 9 looking in the direction of the arrows thereon;

Fig. 11 is a view similar to Fig. 6 but at the fourth feed of the machine;

Fig. 16 is a vertical section on the line 16-46 of Fig. with the pattern wheel and its bracket in elevation;

Fig. 17 is a plan view of the yarn or thread guide-bracket at the first feed and the closely related parts; I 5

Fig. 18 is an outside elevation ofthe yarn or other guide bracket and its support of Fig. 17;

.Fig. 19 is an inside elevation but otherwise similar to Fig. 18;

Fig. 20 is a. vertical section on the line 20-20 10 ofFig. 17;.

Fig. 21 is an enlarged detail in elevation to show a sinker and the relation thereto of the usual knitting thread or yarn and the rubberlike strand;

Figs. 22 to are plan views at the first, second, third and fourth feeds respectively to show the presser cam and in Figs. 23 and 24 to show the pattern wheels, said views also showing the r to show a. needle and a sinker and representing in Fig. 31b the manner of introducing the yarn or thread and the rubber-like strand;

Fig. 32 is a front elevation of means for controllingthe tension of the rubber-like strand; I

Fig. 33 is an end elevation partly in vertical section of the mechanism shown in Fig. 32;

Fig. 34- is a view partly in elevation and partly in vertical section of the means shown-in Fig. 32;

Fig.-35 is an outside or back view of a completed portion of the knitted fabric, much enlarged; that is to say, a view of the fabric after it has passed the first, second, third and fourth feeds; Fig. 36 is-an inside or front view of the same fabric;

Figs. 3'7 and 38 are views corresponding to Figs. 35 and 36 respectively, but enlarged thereover and wherein the yarn or thread at each of the first, second, third and fourth feeds and the rubberlike strand are contrastingly designated or hatched;

Figs. 37a. and 38a a're charts indicating the con- 

